Portion of a handset



FIG. 1 is a front view of a portion of a handset, with the handset shown in a first configuration, showing my new design;

FIG. 2 is a front view of the portion of a handset, with the handset shown in a second configuration; and,

FIG. 3 is a front perspective view of the portion of the handset, with the handset shown in the second configuration.

The broken line showing of the remainder of the handset, in both the first and second configurations, is for illustrative purposes only and forms no part of the claimed design. The unshown portions of the handset form no part of the claimed design. 

The ornamental design for a portion of a handset, as shown and described. 